What is nucleation core origin during alloy solidification, especially for equiaxed grains? Different dependence degrees of the magnitude or occurrence element content variation could shed light on this long-standing issue in actual large ingots. Here, based etched surface height and grayscale, distributions within solid fraction continuous casting billets additive manufacturing samples are fir...

BACKGROUND Floating Knee injuries are complex injuries. The type of fractures, soft tissue and associated injuries make this a challenging problem to manage. We present the outcome of these injuries after surgical management. METHODS 29 patients with floating knee injuries were managed over a 3 year period. This was a prospective study were both fractures of the floating knee injury were surg...

A highly efficient three-phase single drop microextraction (SDME) method is presented by using an organic-aqueous compound droplet. A coupling microdevice is designed to produce compound droplets in different sizes conveniently. In this way, the volume ratio of organic phase to aqueous phase in a compound droplet can be significantly reduced. Good operability and droplet stability were observed...

an efficient dispersive liquid-liquid microextraction using tetraalkylammonium bromide coated silver nanoparticles (dllme-agnps) prepared in chloroform has been successfully applied as electrostatic affinity probes to the microextraction and preconcentration of terazosin prior to spectrofluorimetry analysis. this technique is based on a ternary system of solvents, where appropriate amount of mi...

An efficient dispersive liquid-liquid microextraction using tetraalkylammonium bromide coated silver nanoparticles (DLLME-AgNPs) prepared in chloroform has been successfully applied as electrostatic affinity probes to the microextraction and preconcentration of terazosin prior to spectrofluorimetry analysis. This technique is based on a ternary system of solvents, where appropriate amount of mi...

An oral sustained-release floating tablet formulation of metformin HCl was designed and developed. Effervescence and swelling properties were attributed on the developed tablets by sodium bicarbonate and HPMC-PEO polymer combination, respectively. Tablet composition was optimized by response surface methodology (RSM). Seventeen (17) trial formulations were analyzed according to Box-Behnken desi...

The formula normally used to calculate the space potential Vs from the measured floating potential V f is derived for plane probes and is erroneous when applied to cylindrical probes in the low-density plasmas (n,10 cm) used in industrial plasma processing. The plasma potential Vs is of interest because it determines the sheath drop which governs the energy of ions bombarding the walls or a sil...

Gastroretentive drug delivery system i.e. floating microspheres of an H2 receptor antagonist drug ‘famotidine’ was successfully prepared using combination of polymer as hydroxyl propyl ethyl cellulose K15M (HPMC K15M) and cellulose acetate via non-aqueous solvent evaporation (oil-in-water) technique. Famotidine loaded floating microsphere formulations were prepared by dissolving polymer in solv...